public InputKeyEventArgs(KeyDown newKey)
{
InputKey = newKey;
}
private void OnInputKey(KeyDown inputKey)
{
char?chr;
if (inputKey.Key == Key.Return || inputKey.Key == Key.Enter)
{
_currentHash = Guid.Empty;
_currentInput = _currentInput + Environment.NewLine;
OnCommand(_currentInput);
_inputHistory.AddPrevious(_currentInput);
_currentInput = string.Empty;
_position = 0;
OnInputChanged(_currentInput, _position);
}
else if (inputKey.Key == Key.Back)
{
if (_currentInput.Length == 0 || _position <= -_currentInput.Length)
{
return;
}
_currentInput = _currentInput.Remove(_currentInput.Length + _position - 1, 1);
}
else if (inputKey.Key == Key.Home)
{
_position = -_currentInput.Length;
}
else if (inputKey.Key == Key.End)
{
_position = 0;
}
else if (inputKey.Key == Key.Delete)
{
if (_position < 0)
{
_currentInput = _currentInput.Remove(_currentInput.Length + _position, 1);
_position++;
}
}
else if (inputKey.Key == Key.Left)
{
if (_position > (1 - (_currentInput.Length + 1)))
{
_position--;
}
}
else if (inputKey.Key == Key.Right)
{
if (_position < 0)
{
_position++;
}
}
else if (inputKey.Key == Key.Up)
{
var prev = _inputHistory.GetPrevious(_currentHash);
if (prev != null)
{
_currentHash = prev.Value.Key;
_currentInput = prev.Value.Value;
_position = _currentInput.Length;
}
}
else if (inputKey.Key == Key.Down)
{
var next = _inputHistory.GetNext(_currentHash);
if (next != null)
{
_currentHash = next.Value.Key;
_currentInput = next.Value.Value;
_position = 0;
}
else
{
_currentHash = Guid.Empty;
_currentInput = "";
_position = 0;
}
}
else if (inputKey.Character != '\0')
{
// try get Character
if (_position == 0)
{
_currentInput += inputKey.Character;
}
else
{
_currentInput = _currentInput.Insert(_currentInput.Length + _position, inputKey.Character.ToString());
//_position++;
}
}
else
{
return;
}
OnInputChanged(_currentInput, _position);
}